Tangled Thread on Wrong Side of Fabric
Symptom
- The thread becomes tangled on the wrong side of the fabric.

- After starting sewing, a rattling noise is made and sewing cannot continue.
- Looking under the fabric, there is tangled thread in the bobbin case.

Cause
- Incorrect upper threading
- If the upper thread is incorrectly threaded, the upper thread passing through the fabric cannot be firmly pulled up and the upper thread becomes tangled in the bobbin case, causing a rattling noise.
Remedy
- Remove the tangled thread, and then correct the upper threading.
Remove the tangled thread. If it cannot be removed, cut the thread with scissors.
- Refer to “Cleaning the Race”.
Remove the upper thread from the machine.
Correct the upper threading by following the instructions in “Upper Threading”.
- If the bobbin was removed from the bobbin case, refer to “Installing the Bobbin” to correctly install the bobbin.
